Lowest and Highest Points in Franklin County

Lowest and Highest Points in Franklin County
Low Elevation: 
<350 feet above mean sea level
Low Place: 
Big Muddy River
Low Quad Name: 
Herrin
Low PLSS: 
3-33-7S-1E
Low Geology: 
Cahokia Alluvium and Equality Formation Carmi Member; lake bottom deposits
High Elevation: 
>604 feet above mean sea level
High Place: 
unnamed hilltop
High Quad Name: 
Akin
High PLSS: 
3-1-7S-4E
High Geology: 
Illinois Vandalia till upland over Pennsylvanian Bond Formation ridge
Area: 
427.09 square miles
Total Relief: 
254 feet
Percent Slope: 
0.85%
randomness